Whenever I try to zoom in or work within this scene, the FPS drops to 2-5 fps a second and causes up to 100% GPU Utilization (Blender 4.2 LTS). Scene has less than 10k polygons.
Wave.blend (1.6 MB).
I’m using a GeForce RTX 2060, AMD Ryzen 7 5700G, 16 Gigs of ram
While poly count isn’t high, your material isn’t simple and also has values that have drivers. So there’s so refreshing/rebuilding of the shader happening as you playback, and that adds some overhead.
But beyond that, I opened it in 4.1 and 4.2. Playback is certainly slower in 4.2 render view (10 FPS), but if you uncheck Shadows in your render tab - you’ll see the speed return.
Obviously turn it back on when you render, if needing shadows.
Blocking Shock.001 from view will improve the frame speed to some extent.
The alternative is to simplify and use nodes for testing, and to use existing nodes for rendering.
※ Fundamentally, performance improvements beyond hardware limits are not possible.
Blender 4.2 / 4.3 is extremely slow at the moment and I hope someone will take care of it soon.
Wasn’t aware that drivers had such an impact on performance. Also is 4.2 generally slower overall or is it just in niche circumstances?
I might have to downgrade to an earlier version if that’s the case. Tbf it felt slower and more intensive than previous versions but I thought I was suffering from hardware issues
